BR0210134A - ganho de diversidade com uma antena compacta - Google Patents

ganho de diversidade com uma antena compacta

Info

Publication number
BR0210134A
BR0210134A BRPI0210134-3A BR0210134A BR0210134A BR 0210134 A BR0210134 A BR 0210134A BR 0210134 A BR0210134 A BR 0210134A BR 0210134 A BR0210134 A BR 0210134A
Authority
BR
Brazil
Prior art keywords
compact antenna
diversity gain
base station
antenna
weighting factors
Prior art date
Application number
BRPI0210134-3A
Other languages
English (en)
Inventor
Michael J Wengler
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR0210134A publication Critical patent/BR0210134A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0848—Joint weighting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/086—Weighted combining using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)

Abstract

"GANHO DE DIVERSIDADE COM UMA ANTENA COMPACTA". Uma cadeia de receptor (53) para uso em um sistema de comunicação sem fio inclui uma antena compacta, altamente correlacionada, de múltiplos elementos. Os múltiplos elementos de antena (34) e (35) estão configurados para receber um sinal proveniente de pelo menos uma estação base. Os sinais altamente correlacionados emitidos a partir dos elementos de antena (34 e 35) são opcionalmente combinados em um controlador (55) usando-se um conjunto de fatores de ponderação. O conjunto de fatores de ponderação para cada sinal de estação base é determinado em resposta às assinaturas espaciais dos sinais recebidos.
BRPI0210134-3A 2001-06-04 2002-05-31 ganho de diversidade com uma antena compacta BR0210134A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/874,661 US7058145B2 (en) 2001-06-04 2001-06-04 Diversity gain with a compact antenna
PCT/US2002/017044 WO2002100001A2 (en) 2001-06-04 2002-05-31 Diversity gain with a compact antenna

Publications (1)

Publication Number Publication Date
BR0210134A true BR0210134A (pt) 2006-04-04

Family

ID=25364280

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0210134-3A BR0210134A (pt) 2001-06-04 2002-05-31 ganho de diversidade com uma antena compacta

Country Status (9)

Country Link
US (1) US7058145B2 (pt)
EP (1) EP1393467A2 (pt)
JP (1) JP2005516428A (pt)
KR (1) KR100901101B1 (pt)
CN (1) CN100508424C (pt)
BR (1) BR0210134A (pt)
HK (1) HK1067818A1 (pt)
TW (1) TWI270258B (pt)
WO (1) WO2002100001A2 (pt)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003018123A (ja) * 2001-07-05 2003-01-17 Alps Electric Co Ltd Ｏｆｄｍ受信装置
US7039135B2 (en) * 2001-10-11 2006-05-02 D.S.P.C. Technologies Ltd. Interference reduction using low complexity antenna array
JP4309110B2 (ja) * 2002-09-27 2009-08-05 パナソニック株式会社 適応アンテナ無線通信装置
KR100656512B1 (ko) * 2004-05-31 2006-12-11 삼성전자주식회사 기지국 시스템의 신호 처리 방법 및 장치
US7242914B2 (en) 2004-06-16 2007-07-10 Telefonaktiebolaget Lm Ericsson (Publ) Method of automatic gain control for multiple receiver front-ends
US7113129B2 (en) * 2004-09-23 2006-09-26 Interdigital Technology Corporation Blind signal separation using a combination of correlated and uncorrelated antenna elements
US7414579B2 (en) * 2004-09-23 2008-08-19 Interdigital Technology Corporation Blind signal separation using correlated antenna elements
JP2007028100A (ja) * 2005-07-14 2007-02-01 Sanyo Electric Co Ltd ダイバシティ方式受信装置、ダイバシティ方式受信装置の制御方法、及びプログラム
US20080102768A1 (en) * 2006-10-25 2008-05-01 Navini Networks, Inc. Method for Obtaining a Covariance Matrix of a Transmitting Channel in a Wireless Network
US8279355B2 (en) * 2009-09-25 2012-10-02 Intel Corporation Method and apparatus to support multi-channel reception
US8401134B1 (en) * 2009-09-30 2013-03-19 The United States Of America As Represented By The Secretary Of The Navy Broadband high dynamic range digital receiving system for electromagnetic signals
CN104854791B (zh) * 2012-10-01 2017-09-22 瑞典爱立信有限公司 Aas传送器失真改进
US9591498B1 (en) * 2014-06-25 2017-03-07 Sprint Communications Company L.P. Detection of base station synchronization failure

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU5354294A (en) 1992-10-09 1994-05-09 E-Systems Incorporated Adaptive co-channel interference reduction system for cellular telephone central base stations
AU1469397A (en) 1995-12-28 1997-07-28 Qualcomm Incorporated Method and apparatus for providing antenna diversity in a portable radiotelephone
FR2750270B1 (fr) * 1996-06-21 1998-08-07 Alcatel Telspace Egaliseur-combineur pour recepteur en diversite, recepteur integrant un tel egaliseur-combineur, et procede de reception en diversite correspondant
US5905467A (en) * 1997-07-25 1999-05-18 Lucent Technologies Inc. Antenna diversity in wireless communication terminals
JP2914445B2 (ja) * 1997-08-05 1999-06-28 日本電気株式会社 Ｃｄｍａ適応受信装置
SE513656C2 (sv) 1997-11-21 2000-10-16 Ericsson Telefon Ab L M Förfarande och anordning för mottagning av radiosignaler med hjälp av antennlober
US7139592B2 (en) * 1999-06-21 2006-11-21 Arraycomm Llc Null deepening for an adaptive antenna based communication station
EP1091447A1 (en) 1999-10-07 2001-04-11 Siemens Aktiengesellschaft Antenna system, in particular for use in a mobile phone handset, and corresponding control method
EP1111812A1 (en) * 1999-12-20 2001-06-27 Nortel Matra Cellular Omni transmit and sectored receive cellular telecommunications network and method of operating the same
US6369758B1 (en) * 2000-11-01 2002-04-09 Unique Broadband Systems, Inc. Adaptive antenna array for mobile communication

Also Published As

Publication number Publication date
WO2002100001A3 (en) 2003-03-20
CN100508424C (zh) 2009-07-01
US20020181627A1 (en) 2002-12-05
HK1067818A1 (en) 2005-04-15
US7058145B2 (en) 2006-06-06
WO2002100001A2 (en) 2002-12-12
CN1545771A (zh) 2004-11-10
KR100901101B1 (ko) 2009-06-08
KR20040003051A (ko) 2004-01-07
TWI270258B (en) 2007-01-01
EP1393467A2 (en) 2004-03-03
JP2005516428A (ja) 2005-06-02

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